Most open source web analytics tools were developed by software developers who work on open source development projects. Some of the successfully developed open source web analytics tools include:
Piwik is an open source web analytics tool which is free.
Piwik is a pre-built software which can be downloaded from Piwik's official website. You can install the software onto your own Linux Web server or a cloud solution (which provides web servers).
You will have to setup the Piwik Tracking Codes on each page of your website.
Piwik has made a few readily built-in reports available. The reports are accessible from within Piwik's user interface.
Each Piwik software comes with a database. The database must be setup to store the website data that will be collected. You will have to manage the regular backup of the database.
The most conventional alternative to open source web analytics tools is Google Analytics which is the most popular free web analytics tool. You choose Google Analytics mainly because:
Piwik as an open source web analytics tool is also free, but you're going to store the data on your own web servers, and you will have to manage the database (i.e. backup, etc). The major advantage is you get the full set of your website's data on Piwik's database, and you will be able to make use of this data for any subsequent detailed data analysis.
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